*These are common phonological processes (patterns). The list is not exhaustive. **Individual differences can be significant. References. Bauman-Waengler, J. A. (2012). Articulatory and phonological impairments. New York, NY: Pearson Higher Education. Bernthal, J., Bankson, N. W., & Flipsen, P., Jr. (2013). Articulation and phonological ...